Nope, those aren't 3D-printed; they're handmade. Ex-chemistry teacher Bobby Jaber—the giveaway to his old profession is that he refers to PVC as polyvinyl chloride—"wanted to combine art and science," and now that he's retired, has thrown himself wholeheartedly into clay.
Buckyballs, icosahedrons, octahedrals and other complex geometrics might not be as lucrative as fictional colleague Walter White's "Blue Sky" product, but they seem to bring a good deal more spiritual peace. Additionally, California-based Jaber has been invited to show (and sell) from as far afield as the Netherlands.
In the following mini-doc, we get to see Jaber doing what I think many of us secretly crave: To create our own things in our own studios, absent market pressures and briefs from higher-ups. (Be sure to stick around until after the credits, when there is an outtake of what appears to be Jaber seeing an iPad for the first time!)